[seqfan] Re: b-file problems

Harvey P. Dale hpd at hpdale.org
Mon Mar 14 15:54:33 CET 2016


	I provided a b-file for A008360.
	Best,
	Harvey
 

-----Original Message-----
From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Neil Sloane
Sent: Monday, March 14, 2016 9:40 AM
To: Moritz Firsching <moritz at math.fu-berlin.de>
Cc: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Subject: [seqfan] Re: b-file problems

Moritz, Thanks very much for the report, and for catching these errors!

I took another look at the first one you mentioned, b008360.txt, from V.
Librandi.
This had at least two lines with .99999999,,,, as you said.
I simply don't trust that file, so I deleted it from the server and also deleted the link from the entry.  I also added a COMMENT line:
Needs a b-file.

I think the best thing to do is simply to created new b-files to replace the corrupted files, if people would like to help with that.

An exception would be if the b-file is really hard to recreate - in that case it would be better to repair the corrupted file.  But let's hope most of them can simply be re-created.


Best regards
Neil

Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com


On Mon, Mar 14, 2016 at 9:17 AM, Moritz Firsching <moritz at math.fu-berlin.de>
wrote:

> In the first there were many terms with .9999999...
> Wouldn't it be easiest to write a regular expression, that checks 
> validity of the files? (I actually thought this is how it would be 
> done)
>
> I can start fixing these myself tonight or tomorrow also.
>
> Two days ago I fixed a bunch of them that had commas in them. After 
> editing 7 or so, I was slowed down: the website said I was editing too 
> many... them I waited a bit and after Jörg and others reviewed the 
> cahnges I could continue.
>
>
> I hope the list below helps in finding the problems.
>
> Cheers
>  Moritz
>
> 8360 unable to convert
> '6705660303392826.99999999999999999999999999999999999999999999
>
> 51746 unable to convert
> '676005104.999999999999999999999999999999999999999999999999999
>
> 55658 unable to convert
> '77767071898460.9999999999999999999999999999999999999999999999
>
> 65074 unable to convert
> '1111111111111111111111111111111111111111111111111111111111111
>
> 91806 unable to convert
> '1849930506300817137000432728846751985588720396985501503346261
>
> 95189 unable to convert 'Unknown' to an integer
> 122888 unable to convert
> '93972558474823979858032347026402875\xf0\x90\x81\xa4\x01249769
>
> 124856 unable to convert '-' to an integer
>
> 134970 unable to convert '98765432\xf0\x90\x81\xa4\x016256' to an 
> integer
>
> 134971 unable to convert '98765421145679\xf0\x90\x81\xa4\x01' to an 
> integer
>
> 160897 unable to convert '2606224855258801700\xf0\x90\x81\xa4\x01' to 
> an integer
>
> 160953 unable to convert
> '32647440431774334628458768\xf0\x90\x81\xa4\x01249511591000000
>
> 161025 unable to convert
> '101916175070339771868623\xf0\x90\x81\xa4\x012714202816118784'
>
> 161139 unable to convert '511177\xf0\x90\x81\xa4\x0136' to an integer
>
> 161167 unable to convert
> '3894867087417527629743\xf0\x90\x81\xa4\x01320967537920' to an
>
> 161213 unable to convert
> '171038968335257492095035845\xf0\x90\x81\xa4\x011589887' to an
>
> 175155 unable to convert
> '2934187435092306074934075674570536350861904476689894534678067
>
> 175592 unable to convert '3e+05' to an integer
>
> 176447 unable to convert '-' to an integer
>
> 184220 unable to convert '937604\xf0\x90\x81\xa4\x018807' to an 
> integer
>
> 184830 unable to convert '10\xf0\x90\x81\xa4\x0132' to an integer
>
> 195264 unable to convert '?' to an integer
>
> 217100 unable to convert
> '5403692432082519912402725848731274790960805917277440287400988
>
> 219329 unable to convert '1e+06' to an integer
>
> 221703 unable to convert
> '8297396770992789922812772078836920170484995340264632979970785
>
> 224705 unable to convert '1e+05' to an integer
>
> 224955 unable to convert '1e+05' to an integer
>
> 252783 unable to convert 'Null' to an integer
>
> 253952 unable to convert '69222$1' to an integer
>
> 263308 unable to convert 'unknown' to an integer
>
> On 03/14/2016 02:07 PM, Neil Sloane wrote:
> > I cleaned up the b-file for the first on the list, A008360 (it had 
> > no end-of-file). At least, I think I cleaned it up
> >
> > But it is going to be hard to fix these without seeing a full report 
> > of what is wrong.
> >
> > Can you please send me the full report?  Probably other people will 
> > want to see it too.
> >
> > Send it to me as a private email, and I will post it on the OEIS wiki.
> >
> >
> > Best regards
> > Neil
> >
> > Neil J. A. Sloane, President, OEIS Foundation.
> > 11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
> > Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
> > Phone: 732 828 6098; home page: http://NeilSloane.com
> > Email: njasloane at gmail.com <mailto:njasloane at gmail.com>
> >
> >
> > On Mon, Mar 14, 2016 at 8:38 AM, Joerg Arndt <arndt at jjj.de 
> > <mailto:arndt at jjj.de>> wrote:
> >
> >     Moritz Firsching (CC) informed me that the b-files of the sequences
> >     listed
> >     below have problems like stray commas, binary characters, 
> > numbers
> ending
> >     in .99999... (that's what you get for using floating point
> arithmetic!),
> >     and sometimes outright garbage.
> >
> >      https://oeis.org/A8360
> >      https://oeis.org/A51746
> >      https://oeis.org/A55658
> >      https://oeis.org/A65074
> >      https://oeis.org/A91806
> >      https://oeis.org/A95189
> >      https://oeis.org/A122888
> >      https://oeis.org/A124856
> >      https://oeis.org/A134970
> >      https://oeis.org/A134971
> >      https://oeis.org/A160897
> >      https://oeis.org/A160953
> >      https://oeis.org/A161025
> >      https://oeis.org/A161139
> >      https://oeis.org/A161167
> >      https://oeis.org/A161213
> >      https://oeis.org/A175155
> >      https://oeis.org/A175592
> >      https://oeis.org/A176447
> >      https://oeis.org/A184220
> >      https://oeis.org/A184830
> >      https://oeis.org/A195264
> >      https://oeis.org/A217100
> >      https://oeis.org/A219329
> >      https://oeis.org/A221703
> >      https://oeis.org/A224705
> >      https://oeis.org/A224955
> >      https://oeis.org/A252783
> >      https://oeis.org/A253952
> >      https://oeis.org/A263308
> >
> >     Volunteers for cleaning up are welcome.
> >
> >     Best regards,   jj
> >
> >     P.S.: some people claim that automated testing is a good thing.
> >
> >     --
> >     Seqfan Mailing list - http://list.seqfan.eu/
> >
> >
>
>

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